We have nice views and a bunch of tall/wide double hung units.
The glass appears to be two pain one piece, the two pains are very close together, no more than an 1/8" air space and no spacers obvious. They are at least medium grade and have solid wood interiors and vinyl clad (over wood) exteriors. I haven't read in detail but can say I have a two story built in about 1985 (27 years old) and it has Andersen windows. The view is worth more to us than saving the energy.
Since I have far more standing dead hardwood than I can ever burn, it was a no-brainer. I gave up on the interior insulation at night and just use the wood stove to heat the area. It could handle the stress of the expansion and contraction. The big difference is that the aluminum spacer on the old units was now replaced with a plastic and butyl spacer. Lesson learned.Īll of the windows were replaced under warranty but we still had problems.ġ0 years ago I finally replaced the entire window wall with newer designed low-e, argon filled. Windows didn't break but once the seal is gone, they're pretty well useless because half the time, they are fogged up.
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It was more like the crack of a gun actually. You could hear the bang of the glass expanding on cold, sunny mornings. When I had insulated panels in the winter, the sun would hit the very cold windows in the morning and the rapid rise in temps broke the seals on all of the windows. I tried insulation on the larger, lower windows but ran into huge problems. The windows provide fantastic heat in the winter when it's sunny but very little heat in the summer due to a properly designed overhang and a wonderfully large deciduous tree right in front. Original windows were double pane sealed units. We have 30' x 10~16' high south facing window wall with a vaulted ceiling on a super insulated/sealed house that I built 30 years ago.